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A325738 as a simple table

na(n)
11
20
31
4-3
56
6-9
79
80
9-27
1081
11-162
12243
13-243
141
15714
16-2067
173695
18-3519
19-4896
2037621
21-129999
22352716
23-836111
241802901
25-3605802
266760781
27-11961081
2820058301
29-32017846
3048916881
31-72174561
32104394081
33-151428366
34226511451
35-357639591
36600805296

[1,0,1,-3,6,-9,9,0,-27,81,-162,243,-243,1,714,
 -2067,3695,-3519,-4896,37621,-129999,352716,
 -836111,1802901,-3605802,6760781,-11961081,
 20058301,-32017846,48916881,-72174561,104394081,
 -151428366,226511451,-357639591,600805296]